內(nèi)聯(lián)緩存的實(shí)現(xiàn)方式很簡(jiǎn)單:首先,V8引擎會(huì)對(duì)常見(jiàn)的函數(shù)調(diào)用進(jìn)行緩存。當(dāng)函數(shù)被再次調(diào)用時(shí),V8引擎會(huì)檢查緩存并直接使用已經(jīng)生成的機(jī)器碼,而不是再次進(jìn)行動(dòng)態(tài)分派。這樣的做法可以大大減少函數(shù)調(diào)用的時(shí)間開(kāi)銷(xiāo),顯著提升JavaScript代碼的執(zhí)行效率。 1 2 3 4 5 6 function add(a, b) { return a + b; } var result...
Node.js is a JavaScript runtime built on Chrome's V8 JavaScript engine.Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient. Node.js' package ecosystem, npm , is the largest ecosystem of open source libraries in the world. ...